I have some questions that might be dumb.
- Thread starter MIGUEL_SY
- Start date
InvisiBill
Active member
The lines themselves just transmit air pressure to different devices. Your climate control switch uses vacuum to move the vent flaps and shift airflow to different places. The line to the FPR adjusts the flow to match the boost level. The lines on the boost control solenoid let the turbo see the boost level so it can adjust up or down if it needs to. And so on...
Obviously, if there's a leak in one of the lines, the device it connects to is going to get an incorrect signal. It could make your FPR not increase the amount of fuel, or make the turbo not know when it's pushing enough boost, or make your heater controls work right. Replacing old broken lines could fix all these problems...
Get the highest quality silicone hose you can. Some people have said that the colored hoses are lower quality than plain black, so you might want to steer clear of those just so you don't have to worry about pinhole leaks and stuff. I believe all of our hoses are 4 and 6mm, and I think you can still get the check valves (which prevent boost from going to devices that shouldn't get pressurized) from the dealer. Ian sold the kits, so maybe he can tell you a bit about what to get...
Obviously, if there's a leak in one of the lines, the device it connects to is going to get an incorrect signal. It could make your FPR not increase the amount of fuel, or make the turbo not know when it's pushing enough boost, or make your heater controls work right. Replacing old broken lines could fix all these problems...
Get the highest quality silicone hose you can. Some people have said that the colored hoses are lower quality than plain black, so you might want to steer clear of those just so you don't have to worry about pinhole leaks and stuff. I believe all of our hoses are 4 and 6mm, and I think you can still get the check valves (which prevent boost from going to devices that shouldn't get pressurized) from the dealer. Ian sold the kits, so maybe he can tell you a bit about what to get...
Ian Turgeon
Cascading Inspiration
this sounds like something I can answer.. mostly
1:What do the vacuum lines do?
well, johnny... engine creates vacuum (basically an air pump, it sucks in air, creating vacuum because less molecules occupy a space, causing lower pressure, and moecules from a more dense area want to move to the lower density area)
the vacuum lines are used to "transport" or use this vacuum force to operate various sensors, actuators, and basically to suck things into the engine.
2:What problems can they eliminate?
Replacing leaky vacuum lines can have numerous effects.
Lets look at what relies on vacuum:
Fuel Pressure Regulator
Map Sensor
Cruise Control
Wastegate
Charcoal canister
Exhaust Gas Recirculation
AC/Heater ducting doors.
Brake Booster
Problems relating to any of these things working incorrectly should always be investigated by checking the vac lines. A failing vac line could cause one or several of the above mentioned things to fail/become unrelyable. Almost all of them could directly effect several aspects of how a motor runs/idles/boosts/knocks, not to mention the non critical accessories.
3:And also what is the best kind of hose to use for when you change the vacuum lines?
Rubber from autozone/discount will work just fine. A better replacement would be a silicone vac hose. Inside Diameter of the hoses is a concern when your working with vacuum. It will effect the amount of force and speed of the force transmitted.
1:What do the vacuum lines do?
well, johnny... engine creates vacuum (basically an air pump, it sucks in air, creating vacuum because less molecules occupy a space, causing lower pressure, and moecules from a more dense area want to move to the lower density area)
the vacuum lines are used to "transport" or use this vacuum force to operate various sensors, actuators, and basically to suck things into the engine.
2:What problems can they eliminate?
Replacing leaky vacuum lines can have numerous effects.
Lets look at what relies on vacuum:
Fuel Pressure Regulator
Map Sensor
Cruise Control
Wastegate
Charcoal canister
Exhaust Gas Recirculation
AC/Heater ducting doors.
Brake Booster
Problems relating to any of these things working incorrectly should always be investigated by checking the vac lines. A failing vac line could cause one or several of the above mentioned things to fail/become unrelyable. Almost all of them could directly effect several aspects of how a motor runs/idles/boosts/knocks, not to mention the non critical accessories.
3:And also what is the best kind of hose to use for when you change the vacuum lines?
Rubber from autozone/discount will work just fine. A better replacement would be a silicone vac hose. Inside Diameter of the hoses is a concern when your working with vacuum. It will effect the amount of force and speed of the force transmitted.
Ian Turgeon
Cascading Inspiration
keith and I are concidering holding a "stock" of vacuum kits to sell, still havnt gone over any details, but you know...
TurboManiacal
Donating Member
SyTyArchives said:
I'm still waiting for a hooded white cotton sweat shirt from SyTy archives with a Silly Syclone on the front!
:lol: Actually I'd be very interested in a Kit as soon as possible.
Flyin Ryan
hated cuz he drives fords
I'd also be interested in a kit if when you guys get them.. Let me know.
